X0306 4 2016-02-22 0 0001610532 Hortonworks, Inc. HDP 0001190193 SPURLOCK STEVEN M 2965 WOODSIDE ROAD WOODSIDE CA 94062 0 0 1 0 0001190192 BALKANSKI ALEXANDRE 2965 WOODSIDE ROAD WOODSIDE CA 94062 0 0 1 0 0001572685 Cohler Matt 2965 WOODSIDE ROAD WOODSIDE CA 94062 0 0 1 0 0001190211 DUNLEVIE BRUCE 2965 WOODSIDE ROAD WOODSIDE CA 94062 0 0 1 0 0001190191 GURLEY J WILLIAM 2965 WOODSIDE ROAD WOODSIDE CA 94062 0 0 1 0 0001190213 HARVEY KEVIN 2965 WOODSIDE ROAD WOODSIDE CA 94062 0 0 1 0 0001183234 KAGLE ROBERT 2965 WOODSIDE ROAD WOODSIDE CA 94062 0 0 1 0 0001091435 LASKY MITCHELL 2965 WOODSIDE ROAD WOODSIDE CA 94062 0 0 1 0 Common Stock 2016-02-22 4 P 0 4100 9.924 A 300497 I By Benchmark Capital Partners VI, L.P. Common Stock 6336803 I By Benchmark Capital Partners VII, L.P. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.95 to $10.00, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 1 to this Form 4. Shares held of record by Benchmark Capital Partners VI, L.P. ("BCP VI"), as nominee for BCP VI, Benchmark Founders' Fund VI, L.P. ("BFF VI"), Benchmark Founders' Fund VI-B, L.P. ("BFF VI-B") and related persons. Benchmark Capital Management Co. VI, L.L.C. ("BCMC VI"), the general partner of each of BCP VI, BFF VI and BFF VI-B, may be deemed to have sole voting and investment power over such shares. Alexandre Balkanski, Matthew R.Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Robert C. Kagle, Mitchell H. Lasky and Steven M. Spurlock are the managing members of BCMC VI, which serves as general partner to BCP VI, BFF VI, L.P. and BFF VI-B, L.P., and may be deemed to share voting and investment power over the shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent of such person's or entity's pecuniary interest in such securities). Shares held of record by Benchmark Capital Partners VII, L.P, ("BCP VII"), as nominee for BCP VII, Benchmark Founders' Fund VII, L.P. ("BFF VII"), Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B") and related persons. Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner of each of BCP VII, BFF VII and BFF VII-B, may be deemed to have sole voting and investment power over such shares. Matthew R. Cohler, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Steven M. Spurlock, and Mitchell H. Lasky are the managing members of BCMC VII, which serves as general partner to BCP VII, BFF VII and BFF VII-B, and may be deemed to share voting and investment power over the shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent of such person's or entity's pecuniary interest in such securities). This report is one of two reports, both on a separate Form 4, but relating to the same transaction being filed by the applicable members of the Benchmark entities referenced in this Form 4. /s/ Steven M. Spurlock 2016-02-24 Alexandre Balkanski, /s/ Steven M. Spurlock, Authorized Signatory 2016-02-24 Matthew R. Cohler, /s/ Steven M. Spurlock, Authorized Signatory 2016-02-24 Bruce W. Dunlevie, /s/ Steven M. Spurlock, Authorized Signatory 2016-02-24 J. William Gurley, /s/ Steven M. Spurlock, Authorized Signatory 2016-02-24 Kevin R. Harvey, /s/ Steven M. Spurlock, Authorized Signatory 2016-02-24 Robert C. Kagle, /s/ Steven M. Spurlock, Authorized Signatory 2016-02-24 Mitchell H. Lasky, /s/ Steven M. Spurlock, Authorized Signatory 2016-02-24